looks like nute burn bruh, but cant be too sure, it'd help if you could post more info about your grow;
type of soil
nutes
amount of water
humidity
proper ventilation ect...
It looks to me like she might be getting too much fertilizer. I over fertilized once and it turned the tips and edges of the leaves crispy brown like that. If you are using a liquid fertilizer I would probably back off and see how she reacts to just water for a while.
lol it was kind of a let down clicked on it with the intention of "oh, let's see how badly someone can fuck up a bud plant" then I was like aw that's not dying I don't know how you could actually kill it unless you're a total idiot
LOL Sorry dudes I just wanted to know fast, so I did some false advertisement! It work tho, So too much fertilizer is what im thinking too. So how can I adjust the levels? I have gave the plant water only for a week and the problem is the same.
Flush the pot with pure water at a ratio of about 3x water to soil in the pot. What this does is dilutes the nutrient and salt build up in the soil and it drains out the bottom.